How to Change the Oil in a 2019 Sherco 300 SEF FACTORY

Shop parts for a 2019 Sherco 300 SEF FACTORY Dirt Bike.

Performing an oil change on your 2019 Sherco 300 SEF FACTORY is a key maintenance task that ensures the longevity and performance of your dirt bike. The process is straightforward, but there are model-specific tips and torque specs you need to know. This proprietary MotoSport.com how-to guide walks you step-by-step through the process.

Tools & Materials Needed

  • 8mm socket
  • 17mm socket
  • 4mm Allen head socket or wrench
  • Socket wrench
  • Drain pan (to catch used oil)
  • New oil filter (replace with every oil change)
  • New O-ring for the oil filter cap
  • New crush washers for drain bolts (recommended)
  • Shop towels or rags
  • SAE 10W60 engine oil, 0.9 liters
  • Funnel (for refill)
  • Gloves (optional but recommended)

Preparation Steps

  • Warm the engine by running it for five minutes; this helps the oil drain more completely.
  • Turn off the engine and place the bike on a stable, level stand.
  • Gather all tools and new parts before starting.

Oil Change Procedure

  1. Position your drain pan directly beneath both drain plugs at the bottom of the engine. The 300 SEF Factory uses two drain plugs.
    Specific to Sherco 300 SEF FACTORY: The oil fill port is tucked under the titanium exhaust, so be prepared for a tight fit when refilling oil.
  2. Remove the drain plugs with the 17mm socket and 4mm Allen. Carefully set aside the drain plugs and crush washers.
    • Let all the oil drain out completely.
    • Inspect magnetic drain plug for metal shavings; clean thoroughly.
    • Check the crush washers and replace them if they are flattened or damaged to prevent future leaks.
  3. Remove the pre-oil filter using the appropriate tool (typically a 4mm Allen). Allow any remaining oil to drain when the filter comes out.
  4. Replace the oil filter with a new one. Ensure you orient the filter correctly—refer to the owner's manual for the specific direction.
  5. Install the new O-ring on the oil filter cap, then reinstall the cap.
  6. Reinstall the drain plugs and pre-filter:
    • Tighten magnetic drain plug (M12): 15 Nm
    • Tighten main drain plug (M19): 22 Nm
    • Tighten oil filter cap (M45): 15 Nm
    • Always use new crush washers if possible.
  7. Remove the oil filler cap. The cap is under the exhaust, so a funnel may be necessary for a spill-free refill.
  8. Slowly add SAE 10W60 oil until you reach 0.9 liters.
    • Pour slowly and use the sight glass to avoid overfilling.
    • Replace the filler cap after topping off.
  9. Start the engine and idle for a minute. Shut it off and check for leaks at the drain plugs and filter cap.
  10. Recheck the oil level after several minutes, topping off as necessary.

Model-Specific Call-outs for the 2019 Sherco 300 SEF FACTORY

  • Two drain plugs: Unique versus some other bikes—ensure both are fully drained and securely refitted with fresh washers as applicable.
  • Oil filter cap placement: Located close to the titanium header. Exercise caution to avoid burns, and use a funnel to reduce mess.
  • Crush washers: These are aluminum and reusable for several changes, but best practice is to install new ones each time.
  • Oil capacity and spec: Only use 0.9 liters of SAE 10W60 full synthetic oil.

Environmental Responsibility

  • Dispose of all used oil, filters, and contaminated materials at a certified recycling center. Never pour used oil down drains or into the wild.

Final Tips

  • Always use high-quality oil specifically formulated for four-stroke performance engines.
  • Double-check all bolts for proper torque and potential leaks before and after your first ride.

By following these steps and noting the model-specific tips, you’ll keep your Sherco 300 SEF FACTORY running strong and protect your investment for the long haul.

Related Shopping Categories

Shop Motor Oil for a 2019 Sherco 300 SEF FACTORY Dirt Bike.

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Shop Oil Drain Pans for a 2019 Sherco 300 SEF FACTORY Dirt Bike.

Shop Tools for a 2019 Sherco 300 SEF FACTORY Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2019 Sherco 300 SEF FACTORY Dirt Bike.

Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.